diff --git a/docs/course_schedule.md b/docs/course_schedule.md
index 8ce6861..06d2377 100644
--- a/docs/course_schedule.md
+++ b/docs/course_schedule.md
@@ -6,7 +6,7 @@
 
 | block   	| start    	| end      	| subject                        	|
 |---------	|----------	|----------	|--------------------------------	|
-| block 1 	|  9:15 AM 	| 10:30 AM 	| [Introduction](../day1/introduction)                   	|
+| block 1 	|  9:00 AM 	| 10:30 AM 	| [Introduction](../day1/introduction)                   	|
 |         	| 10:30 AM 	| 11:00 AM 	| BREAK                          	|
 | block 2 	| 11:00 AM 	| 12:30 PM 	| [Setup](../day1/server_login) & [Reproducibility](../day1/reproducibility)	|
 |         	| 12:30 PM 	|  1:30 PM 	| BREAK                          	|
@@ -18,7 +18,7 @@
 
 | block   	| start    	| end      	| subject                  	|
 |---------	|----------	|----------	|--------------------------	|
-| block 1 	| 9:15 AM  	| 10:30 AM 	| [Variant calling - preparation](../day2/variant_calling_preparation)          	|
+| block 1 	| 9:00 AM  	| 10:30 AM 	| [Variant calling - preparation](../day2/variant_calling_preparation)          	|
 |         	| 10:30 AM 	| 11:00 AM 	| BREAK                    	|
 | block 2 	| 11:00 AM 	| 12:30 PM 	| [Variant calling](../day2/variant_calling)     	|
 |         	| 12:30 PM 	| 1:30 PM  	| BREAK                    	|
diff --git a/docs/precourse.md b/docs/precourse.md
index 3a3f30d..a6ae6c5 100644
--- a/docs/precourse.md
+++ b/docs/precourse.md
@@ -5,7 +5,7 @@ As is stated in the course prerequisites at the [announcement web page](https://
 
 ## Software
 
-We will be mainly working on an Amazon Web Services ([AWS](https://aws.amazon.com/]))  Elastic Cloud (EC2) server. Our Ubuntu server behaves like a 'normal' remote server, and can be approached through a [VS code](https://code.visualstudio.com/) web interface. All participants will be granted access to a personal workspace to be used during the course.
+We will be mainly working on an Amazon Web Services ([AWS](https://aws.amazon.com/]))  Elastic Cloud (EC2) server. Our Ubuntu server behaves like a 'normal' remote server, and can be approached through a [VS code](https://code.visualstudio.com/) web interface. All participants will be granted access to a personal workspace to be used during the course. The web interface will be approached through http (not https!), so make sure you can access http sites. You can validate it here: [http://httpforever.com/](http://httpforever.com/).
 
 The only software you need to install before the course is [Integrative Genomics Viewer (IGV)](http://software.broadinstitute.org/software/igv/).